Edging for roof coverings



Jan. 8 1924. 1,480,246

c. E. DOUGLAS EDGING FOR ROOF COVERINGS Filed April 13, 1923 I INVENTOR. M2. M BY I a W ATTORNEXX.

' so low; whereby-n8 its to Patented Jan. 8, 1924.

UNITED STATES CHARLES E. DOUGLAS, OF NASHUA, NEW HAMPSHIRE EDGING FOB ROOF COVEBINGS.

Application filed April 13, 1923. Serial No. 881,842.

To all whom it may'concem:

Be it known that I, Cmnm's E. Donoms, a citizen of the United 'States, residing at Nashua, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Ed 'ngs for Roof Coverings, of which the fol owing is a specification.

My invention relates to an edging for roof coverings of pre ared paper, either in sheet form or in the form of smaller strips or shingles.

Its purpose is to finish the edge of such a roo covering in an ornamental manner and in such a way that water cannot get between it and the roof covering or percolate in so as to, cause the decay of the sheathing underneath; Another object is to allow the sheet roofing and edging to extend over the edge of the sheathing far enou h-so that the bulk of rain water, etc., will. ropclear of the sheathing.

I am aware that, ed for a similar purpose have been tri and used, but the a as advantages I claim for my construction are that it can be attached to the edge of the roof sheathing before the covering is a plied, and then, presents a pocket for e edge thereof'which is metal above and be A and bottom are equally good conductors t ere is no unequal expansion and contraction to cause the edging and the cement or covering to separate so as to allow water to enter.

After the edge of, the covering is inserted in the pocket with 'a sufiicient amount of waterproof cement and the pocket is closed by having theu zpxer edge of the edging fastened through c covering to the'roor, the pocket is entirely filled and there is no chance for water to enter at any point; r

' I preferabl also provide a biting edge at the to whic' slightly penetrates or bends .bottom which diverts any into t e cover ng,'.and a water lip at the 7 drops of water from the edge of "the sheathing.

Besides' this, by my construction there is a certain elasticity of movement in the. pocket'whieh keeps. the device tight, and

adjoining strips canreadily be overlapped, while it 18 not 11 to mitre the corners. In the drawings, igure 1 is a vertical sectional elevation of the lower edge of the roof and sheathing with my edging nailed in lace at the bottom.

ig. 2 is a view similar to-Fig. 1 showfold 18, I

ing the sheet covering positioned in the pocket after it has been smeared with elastic cement.

Fig. 3 is a view similar to Fig. 2 showing the position of the parts after the upper row of nails has been driven in the wood finishing the job.

Fig. 4. is a perspective view showing the corner construction.

Fig. 5 is a perspective view showing two fidJOiIliIlg strips' lapped over in position to be fastened.

Fig. 6 is an end elevation of a slightly modified strip.

In the drawings, A represents the usual board sheathing with a top surface and a lower edge 31.

B indicates sheet roofing which may be of any of the usual flexible types and may be in large or small strips or in the form of shingles.

G represents the elastic. cement generally used in connection with-such coverings.

D, E and F represent strips of my edging.

Each strip of my preferred type is formed of a stri of sheet metal so bent as to have a top to d 10 the upper edgeof which is slightly bent down at 9 forming a slight angle with the topfold 10 andhaving nail holes 14 proximate this biting edge.

These nail holes may be made in advance, or nails may be driven through the material after it is in position.

At 11 the metal is bent back to form an intermediate fold 13 which extends to the line 12 below the position of the nail holes 14 or where they will be made after the edging is in place, forming a pocket 23 to receive the edge of the sheet roofing B.

At 12 the metal is bent back upon itself, forming a bottom fold 15,,to a line 16 above the bottom edge 11 of the pocket. From .this line it is bent down at substantially right angles to form-1a holding fold 18 which extends, preferably, down far enough to reach the bottom or below the bottom edge 31 of sheathing'A. In this fold, nail holes 19 may be ierced in advance or may be formed by driving through the material nails such as H.

Preferabl at. the lower edge of holding nd outwardly a water lip 20 which serves to throw off any drops of water which may not fall from the edge 11.

In using my edging, I prefer to tack it in position by means of nails H driven through ,joinin the holding fold 18 into the edge of sheathing A, lapping one section D over the adjoining sect-ion F as shown in Fig. 5.

After this is in position, the ed e of the roof covering or sheet roofing v after being well smeared with cement C, is'

.9 to makea slight epression 8 in the roofing B and squeezing the cement so that every crevice, both above and below covering B, is filled.

An additional smear of ceinent 7 is preferably then daubed over the top edge so that there is no chance 'for water to run down over the top of the sheet roofing underneath my edging. 4 4

The construction is such that when adsections D and F afe to be over- 4 lappe folds 10 and 13 of section F will of section F will .of D, thus being eld securely together.

enter pocket 23 of section D, and fold 15 o underneath the fold 15 In the same way at the corners, as shown in Fig. '4, no initreing is necessary as the res ctive folds-10 and 13 of stri E pass un er fold 10 of strip D and em race the folds 13 and 15 of strip D, while the hot- I tom fold 15 of strip E rests on the sheath- In Fig. 5, I show a sh ht modification of my edgm wherein the fiiiting edge9 and the water ip 20 are omitted. I

By having-my intermediate and bottom folds shorter than the to fold, the sheet roofing is locked in placed by the top row of nails and there is practically no ridge to delay the water, especially when a top bitin edge smeared with cement is used.

1. The combination with sheathing, of an edging formed of a stri of sheet metal so bent as to form a hol mg fold extending along the edge of the sheathing and having a water lip at its lower edge, said strip being bent back on top of the sheathing, thence in a fold back upon itself over the ed of the sheathin thencein a second vfold ack upon itself yond the-first fold forming a pocket and down to form a'biting edge, sheet roofing which extends into said pocket, elastic cement which substantially fills the rest of said pocket, nails which pass through the top edge of the edging and the sheet roofing into the sheathing, and nails which pass through the holding {fold -into the sheathing. v

2. An edgingfor sheet-roofing formed of a strip of sheet metal so .bent as to have a top fold with a biting edge bent at a slight angle down from'the top fold, nail holes proximate the biting edge, an intermediate fold bent back from the top fold to a line below the nail holes forming a pocket for the sheet-roofing, a bottom fold bent down from the intermediate fold to a line above the bottom edge of the pocket, a holding fold bent at right angles down from the bottom fold and having-nail holes, and a water lip bent out from the bottom of the holding fold.

3. An edging for sheet roofing formed of a strip of sheet metal so bent as to have a top fold with a biting edge bent at a slight angle down from the top fold, an intermediate fold bent back from the top fold to a line below the biting edge forming a pocket'for the sheet-roofing, a bottom fold bent down from the intermediate fold to a line above the bottom edge of the pocket, a holding fold bent at right angles down from the bottom fold, and a water lip bent out from the bottom of the holding fold.

4. An edging for sheet-roofing formed of a strip of sheet,metal so bent as to have a top .fold, an intermediate fold bent back from the top fold to a line below the top edge thereof forming a pocket for the sheetroofing,.a bottom fold bent down from the intermediate fold to a line above the bottom edge of the pocket, a holding fold bent atright angles down from the bottom fold, and a water lip bent out from the bottom of the holding fold.

5. An edging fQ= sheet-roofing formed of a strip of sheet metal so bent as to have a top fold, {an intermediate fold bent back from the top fold to a line below the top edge thereof forming a pocket for the sheetroofing, a bottom fold bent ,down from the intermediate fold to a line above the bottom edge of the ocket, and a holding fold bent 

